Invest in Your
Progress
Start free — no account, no card. Upgrade only when the app doing the thinking is worth it to you.
Free
No account required to start
- Up to 5 routines Build the programmes you actually run. Archived routines count.
- 401-exercise library Full muscle mapping, equipment and tracking-modality metadata.
- Unlimited custom exercises If the library doesn't have it, add it. No cap.
- Recurring and one-off scheduling Specific weekdays or "every N days" — up to 5 of each.
- Your complete workout history No retention cut-off. Every session you log stays yours.
- Blocks, rounds, supersets and circuits The full routine structure, not a stripped-down version of it.
- Timers and offline use Rest and interval timers, screen stays awake, and the whole app works with no connection.
- Sync across devices Create a free account and your data follows you. Still free.
- Work with a coach Accept a coach’s invite, get their routines, and read their feedback — free on your side.
Pro
Save 35% on the full price. Charged yearly.
For lifters who want the app thinking with them
- AI Coach Not generic advice from the internet. An AI that's read every workout you've logged and answers in your context.
- Pro Analytics See plateaus before you stall. Find your optimal rest per exercise. Catch push/pull and upper/lower imbalances before they become injuries.
- Adaptive Scheduling "3 a week, any days" or "3 in any 7." Schedules built around how you actually train, not how the calendar wants you to.
- Routine Power Push A and Push B under one routine. Schedule each variant on its own day or pick when you start. Update the bench in one place and it propagates everywhere it's used. Unlimited routines.
- Coach Clients Share routines with the lifters you coach. See their workouts as they log them. Leave feedback in context.
- Every free cap lifted Unlimited routines, schedules and workouts — no daily, weekly or monthly ceiling.
Questions?
Do I need to create an account?
No. Open Serkit and start training — routines and workouts are stored on your device. Create a free account only when you want your data synced across devices. An account is required to subscribe to Pro and manage billing.
How does billing work?
Pick your plan and pay through Stripe. Subscriptions renew automatically until you cancel, and you can cancel from Settings using Manage subscription at any time. You keep Pro until the end of the period you’ve already paid for.
Is my workout history limited on the free plan?
No. Every session you log stays available, with no retention cut-off. The free plan caps how many routines and schedules you can create, not how far back you can look.
What happens if I stop paying for Pro?
Nothing is deleted. Your routines, schedules and history stay exactly as they are — the free-tier caps just apply again to anything new you create.
What are routine variants?
Variants let one routine hold multiple versions — “Push Day A” and “Push Day B” — each with its own progress history, schedulable on its own day. Variants are part of Routine Power, a Pro feature.
What is the Founders plan?
The first 500 completed paid signups get $29/year while continuously subscribed. If you cancel and later resubscribe, you pay the then-available price. Availability is confirmed when you start checkout.
Can I pay in my local currency?
Subscriptions are charged in USD. If your card uses another currency, your bank may convert the charge and apply its own exchange rate or fees.
Does Serkit work without internet?
Completely. The app runs from your device, so gym Wi-Fi doesn’t matter. If you have an account, changes sync the next time you’re online.